MD
Mildred Davis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Sangamon-County, Illinois
Our Model Tree links this Mildred Davis across the 1920, 1930 and 1940 US Censuses in Sangamon-County, Illinois (XGBoost, ~Confirmed), with identified parents Alvin & Calvin — first a daughter (b.~1919), then head of a 6-person household.
Age 21
b. ~1919
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Sangamon-County, Illinois |
| Surname | Davis |
| Given Name | Mildred |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Springfield |
| 1935 Residence (County) | Sangamon |
| Additional Details | |
| Occupation | Clerical |
| Industry | Plant Dept. Telephone Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Clerical |
| Township / Ward | Springfield |
| Est. Birth Year | ~1919 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mildred | Age | Birth yr |
|---|---|---|---|---|
| Mildred Davis | Daughter | — | 21 | ~1919 |
| Norma Davis | Daughter | — | 18 | ~1922 |
| Lois Davis | Daughter | — | 15 | ~1925 |
| Calvin Davis | Head | — | 47 | ~1893 |
| Calvin Davis | Son | — | 23 | ~1917 |
| Dorothy Davis | Spouse | — | 44 | ~1896 |
Census Appearances
1920
Sangamon, Illinois
Daughter, age 1
Sangamon, Illinois · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Mildred |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Sangamon, Illinois
Daughter, age 11
Sangamon, Illinois · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Mildred |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Sangamon-County, Illinois
Daughter, age 21
Sangamon-County, Illinois · implied b. ~1919 — 6 household members
| Surname | Davis |
| Given Name | Mildred |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Springfield |
| 1935 Residence (County) | Sangamon |
| Occupation | Clerical |
| Industry | Plant Dept. Telephone Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Mildred Davis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Alvin Davis (~0.92 confidence) and father Calvin Davis (~0.92 confidence) and father Alvin Davis (~0.92 confidence) and mother Dorothy Davis (~0.92 confidence) and mother Dorothy Davis (~0.92 confidence) and mother Dorothy Davis (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Alvin Davis
b. ~1892
Source father
● Household
· direct · ~0.92
Father
Calvin Davis
b. ~1893
Source father
● Household
· direct · ~0.92
Father
Alvin Davis
b. ~1893
Source father
● Household
· direct · ~0.92
Mother
Dorothy Davis
b. ~1896
Source mother
● Household
· direct · ~0.92
Mother
Dorothy Davis
b. ~1896
Source mother
● Household
· direct · ~0.92
Mother
Dorothy Davis
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mildred Davis
Daughter · 1940 · age 21 · b. ~1919 · Illinois
★ You are viewing this record
Sibling
Norma Davis
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lois Davis
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Calvin Davis
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Sangamon-County, Illinois
Open full size
1940 US Federal Census — Sangamon-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00886-00372)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frieda Garbin | 23 | wife | Clerk | Illinois |
| 2 | Following Persons Live In Block 255 | None | — | — | — |
| 3 | Shelby Hindenburg | 33 | Head | Salesman | Indiana |
| 4 | Bertha Hindenburg | 34 | wife | Clerk | Illinois |
| 5 | Following Persons Live In Block 244 | None | — | — | — |
| 6 | Jason J Levine | 44 | Head | Lecturer | South Dakota |
| 7 | Elinor Levine | 35 | wife | Designer | Georgia |
| 8 | Theodore Nation | 35 | Head | Laborer | Indiana |
| 9 | Inez Nation | 33 | wife | — | Illinois |
| 10 | Following Persons Live In Block 257 | None | — | — | — |
| 11 | Jas C Scattingood | 52 | Head | Real Estate & Ins. Broker | Illinois |
| 12 | Wm B Scattingood | 17 | Son | Attendant | Illinois |
| 13 | Following Persons Live In Block 267 | None | — | — | — |
| 14 | Ida Lewandowski | 70 | Head | — | Germany |
| 15 | Irving W Metz | 67 | Head | — | Indiana |
| 16 | Edith Metz | 64 | wife | — | Indiana |
| 17 | Thorp Metz | 38 | Son | — | Illinois |
| 18 | Anna Hoffmann | 68 | Maid | Maid | Illinois |
| 19 | Harry Gunderson | 49 | Head | Meat Cutter | Illinois |
| 20 | Rosa Gunderson | 51 | wife | — | Illinois |
| 21 | Glenn Gunderson | 18 | Son | — | Illinois |
| 22 | Ruth Gunderson | 12 | Daughter | — | Illinois |
| 23 | Donald Gunderson | 10 | Son | — | Illinois |
| 24 | William E Sheets | 46 | Head | Lineman | Indiana |
| 25 | Agnes Sheets | 42 | wife | — | Indiana |
| 26 | Kenneth Sheets | 18 | Son | New Worker | Indiana |
| 27 | Lewis K Groan | 34 | Head | Br. Secretary | Indiana |
| 28 | Inez Groan | 31 | wife | — | Illinois |
| 29 | Leannann Groan | 3 | Daughter | — | Illinois |
| 30 | Calvin E Davis | 47 | Head | Salesman | Missouri |
| 31 | Dorothy C Davis | 44 | wife | — | Illinois |
| 32 | Calvin E Jr Davis | 23 | Son | Mechanic | Illinois |
| 33 | Mildred Davis THIS PERSON | 21 | Daughter | Clerical | Illinois |
| 34 | Norma Jeanne Davis | 18 | Daughter | Dental Asst. | Illinois |
| 35 | Lois Ruth Davis | 15 | Daughter | — | Illinois |
| 36 | Following Persons Live In Block 266 | None | — | — | — |
| 37 | Margaret Riordan | 69 | Head | — | Illinois |
| 38 | Daniel J Riordan | 31 | Son | Meat Cutter | Illinois |
| 39 | Emma J Coliens | 76 | Head | — | Illinois |
| 40 | Geo W Coliens | 46 | Son | — | Illinois |
Pedigree Summary
Mildred + 3 siblings
Gen 1 · 6 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)